August is one of the cooler months of the year in Goulburn, with average highs near 13.2°C and lows around 3.6°C (mean 8.4°C). It is one of the drier months, averaging 62 mm of rainfall and 79% relative humidity across the period.
August is one of the cooler months of the year in Goulburn. Across 45 years of records, the warmest August in Goulburn was 2023 — when the month averaged 11.1°C — while the coldest were 1989 and 1990 at 6.7°C. Typical August days reach 13.2°C with nights near 3.6°C. The long-term trend is warming, about 0.3°C per decade.
August is one of the drier months in Goulburn, averaging 62 mm of rainfall. The wettest August on record was 1998 with 295 mm, while the driest was 1995 at 4 mm.
Relative humidity in Goulburn during August averages 79%. The most humid August was 1998 at 89%, and the least humid was 1982 at 65%.
August receives about 3.4 kWh/m²/day of solar energy in Goulburn. The sunniest August was 1995 at 4 kWh/m²/day, and the cloudiest was 1990 at 2.9.
Average wind speed in Goulburn during August is 1.5 m/s. The windiest August was 1991 at 2.1 m/s, while the calmest were 1982 and 2006 at 1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 8.1°C | 8.0°C | 8.5°C | 8.3°C | 9.5°C | +1.4°C |
| Avg High | 12.7°C | 12.7°C | 13.6°C | 13.2°C | 14.0°C | +1.3°C |
| Avg Low | 3.5°C | 3.3°C | 3.4°C | 3.5°C | 5.0°C | +1.5°C |
| Avg Rain | 64 mm | 82 mm | 41 mm | 61 mm | 63 mm | -1 mm |
August temperatures in Goulburn have risen by about 1.6°C between 1981–1985 and 2021–2025.
August has ranged from a record low of -2.3°C (2008) to a record high of 23.6°C (1982).
Rainfall in August is one of the drier months, averaging 62 mm, with a wettest year of 295 mm.
A quieter season to visit Goulburn
If your dates are flexible, the more temperate months of January and February tend to be the most comfortable for visiting Goulburn. That said, August — with days averaging 13.2°C and nights around 3.6°C (mean 8.4°C) and moderate rainfall (62 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 12.8°C | 9.1°C | 5.4°C | 19.3°C | 0.9°C | 96 mm | 86% | 1.3 m/s | 3.2 |
| 2024 | 15.5°C | 10.9°C | 6.3°C | 21.0°C | 1.1°C | 10 mm | 80% | 1.3 m/s | 3.5 |
| 2023 🔥 | 16.4°C | 11.1°C | 5.8°C | 21.4°C | 2.7°C | 30 mm | 75% | 1.1 m/s | 3.4 |
| 2022 | 12.9°C | 8.9°C | 4.9°C | 17.5°C | -0.9°C | 47 mm | 84% | 1.4 m/s | 3 |
| 2021 | 14.2°C | 9.1°C | 4.0°C | 20.9°C | 1.6°C | 58 mm | 78% | 1.4 m/s | 3.4 |
| 2020 | 12.3°C | 7.9°C | 3.6°C | 16.9°C | -0.4°C | 138 mm | 82% | 1.6 m/s | 3.3 |
| 2019 | 13.7°C | 8.3°C | 3.0°C | 20.8°C | -0.7°C | 23 mm | 69% | 1.6 m/s | 3.7 |
| 2018 | 13.9°C | 8.6°C | 3.2°C | 19.7°C | -2.1°C | 21 mm | 67% | 1.6 m/s | 3.4 |
| 2017 | 13.6°C | 8.2°C | 2.8°C | 18.0°C | -1.2°C | 20 mm | 69% | 1.6 m/s | 3.8 |
| 2016 | 13.0°C | 8.3°C | 3.7°C | 17.2°C | -0.3°C | 45 mm | 82% | 1.2 m/s | 3.2 |
| 2015 | 12.7°C | 8.0°C | 3.4°C | 20.1°C | -1.5°C | 159 mm | 82% | 1.4 m/s | 3.1 |
| 2014 | 12.9°C | 8.4°C | 3.9°C | 16.7°C | -2.0°C | 174 mm | 83% | 1.1 m/s | 3.7 |
| 2013 | 13.1°C | 8.6°C | 4.1°C | 17.9°C | 0.4°C | 16 mm | 79% | 1.8 m/s | 3.5 |
| 2012 | 12.5°C | 7.6°C | 2.7°C | 18.0°C | -0.8°C | 19 mm | 75% | 1.6 m/s | 3.7 |
| 2011 | 14.7°C | 9.9°C | 5.2°C | 19.8°C | 1.7°C | 77 mm | 82% | 1.1 m/s | 3.4 |
| 2010 | 11.7°C | 7.2°C | 2.8°C | 16.1°C | -0.2°C | 52 mm | 80% | 1.7 m/s | 3.4 |
| 2009 | 15.6°C | 9.9°C | 4.1°C | 22.0°C | 0.2°C | 13 mm | 67% | 1.8 m/s | 3.6 |
| 2008 | 11.8°C | 7.0°C | 2.2°C | 16.9°C | -2.3°C | 58 mm | 77% | 1.5 m/s | 3.3 |
| 2007 | 13.4°C | 9.2°C | 5.0°C | 20.5°C | 0.3°C | 40 mm | 82% | 1.6 m/s | 3.4 |
| 2006 | 14.0°C | 8.6°C | 3.3°C | 19.0°C | -0.3°C | 29 mm | 77% | 1 m/s | 3.9 |
| 2005 | 13.9°C | 8.2°C | 2.5°C | 18.4°C | -1.3°C | 21 mm | 76% | 1.4 m/s | 3.8 |
| 2004 | 13.9°C | 9.0°C | 4.1°C | 21.5°C | 0.6°C | 40 mm | 75% | 1.5 m/s | 3.3 |
| 2003 | 13.0°C | 7.9°C | 2.7°C | 17.9°C | -1.9°C | 47 mm | 79% | 1.4 m/s | 3.3 |
| 2002 | 15.1°C | 9.1°C | 3.0°C | 20.1°C | -1.2°C | 22 mm | 70% | 1.2 m/s | 3.8 |
| 2001 | 12.9°C | 8.1°C | 3.3°C | 18.2°C | -1.5°C | 103 mm | 76% | 1.7 m/s | 3.2 |
| 2000 | 12.4°C | 8.1°C | 3.7°C | 16.1°C | -1.4°C | 37 mm | 81% | 1.4 m/s | 3.2 |
| 1999 | 13.9°C | 8.8°C | 3.8°C | 19.4°C | -1.0°C | 45 mm | 80% | 1.1 m/s | 3.7 |
| 1998 🌧️ | 12.7°C | 9.1°C | 5.6°C | 17.6°C | -0.1°C | 295 mm | 89% | 1.3 m/s | 3.2 |
| 1997 | 12.2°C | 7.3°C | 2.3°C | 17.4°C | -1.4°C | 17 mm | 78% | 1.5 m/s | 3.6 |
| 1996 | 12.4°C | 7.9°C | 3.4°C | 16.8°C | -1.3°C | 103 mm | 78% | 1.9 m/s | 3.3 |
| 1995 | 15.6°C | 9.7°C | 3.8°C | 21.8°C | -2.1°C | 4 mm | 76% | 1.4 m/s | 4 |
| 1994 | 12.7°C | 7.2°C | 1.7°C | 20.3°C | -1.7°C | 10 mm | 73% | 1.3 m/s | 3.9 |
| 1993 | 13.7°C | 8.8°C | 4.0°C | 20.3°C | -0.6°C | 38 mm | 79% | 1.3 m/s | 3.7 |
| 1992 | 12.0°C | 7.2°C | 2.4°C | 18.8°C | -1.5°C | 54 mm | 79% | 1.6 m/s | 3.4 |
| 1991 | 11.1°C | 6.8°C | 2.4°C | 16.5°C | -1.2°C | 42 mm | 81% | 2.1 m/s | 3.3 |
| 1990 | 10.3°C | 6.7°C | 3.2°C | 15.6°C | -0.5°C | 210 mm | 86% | 1.9 m/s | 2.9 |
| 1989 ❄️ | 10.7°C | 6.7°C | 2.7°C | 16.0°C | -0.6°C | 38 mm | 84% | 1.5 m/s | 3.3 |
| 1988 | 13.1°C | 8.3°C | 3.6°C | 19.4°C | -1.1°C | 54 mm | 83% | 1.3 m/s | 3.6 |
| 1987 | 12.9°C | 8.8°C | 4.8°C | 16.0°C | 1.1°C | 136 mm | 86% | 1.3 m/s | 3.1 |
| 1986 | 12.2°C | 7.8°C | 3.3°C | 18.0°C | -0.3°C | 162 mm | 83% | 1.5 m/s | 3.6 |
| 1985 | 12.2°C | 7.7°C | 3.1°C | 17.1°C | -0.9°C | 51 mm | 82% | 1.3 m/s | 3.4 |
| 1984 | 11.8°C | 7.5°C | 3.3°C | 16.4°C | 0.0°C | 40 mm | 82% | 1.8 m/s | 3.2 |
| 1983 | 13.0°C | 8.3°C | 3.7°C | 17.6°C | -0.3°C | 40 mm | 84% | 1.3 m/s | — |
| 1982 | 17.2°C | 10.7°C | 4.2°C | 23.6°C | 1.5°C | 14 mm | 65% | 1 m/s | — |
| 1981 | 11.5°C | 7.0°C | 2.6°C | 15.5°C | -1.7°C | 41 mm | 79% | 1.8 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 13.2°C with lows near 3.6°C (mean 8.4°C), based on 45 years of NASA POWER data.
August averages 62 mm of rainfall in Goulburn, one of the drier months. The wettest on record was 295 mm in 1998.
The hottest August reached 23.6°C in 1982. The coldest dipped to -2.3°C in 2008.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.6°C. Daytime highs moved from 13.1°C to 14.4°C and overnight lows from 3.4°C to 5.3°C over the same span.
August is one of the cooler months of the year in Goulburn and one of the drier months, so plan for around 13.2°C daytime highs and 3.6°C at night.
Not quite — August is the 3rd coolest month in Goulburn, averaging 8.4°C.
For August in Goulburn, pack warm layers and a jacket for chilly mornings, with typical highs of 13.2°C and lows of 3.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 79% — quite humid.
Average wind speed in August is 1.5 m/s. The windiest August on record averaged 2.1 m/s (1991).
The wettest August on record was 1998 with 295 mm. On average, August sees 62 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Goulburn behaves each August, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for August specifically, along with year-by-year records and how the month has changed over the decades.
